JPS58155373A - Conduction testing of power-interruption-free low voltage circuit - Google Patents

Conduction testing of power-interruption-free low voltage circuit

Info

Publication number
JPS58155373A
JPS58155373A JP57039063A JP3906382A JPS58155373A JP S58155373 A JPS58155373 A JP S58155373A JP 57039063 A JP57039063 A JP 57039063A JP 3906382 A JP3906382 A JP 3906382A JP S58155373 A JPS58155373 A JP S58155373A
Authority
JP
Japan
Prior art keywords
main switch
panel board
power
earth
relay
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57039063A
Other languages
Japanese (ja)
Inventor
Masuo Otsuka
大塚 益男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP57039063A priority Critical patent/JPS58155373A/en
Publication of JPS58155373A publication Critical patent/JPS58155373A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54Testing for continuity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52Testing for short-circuits, leakage current or ground faults

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE:To judge the conduction of a circuit detecting a voltage generated in the neutral conductor with the ground with a local panel board by operating an earth relay mounted on a secondary side wire of a main switch gear at a substration with the adjustment of a variable resistance connected to the panel board while the power source wire is connected to various earth resistances through a resistance. CONSTITUTION:In order to examine which light panel board, for example, the No.3 main switch gear 4 in a substation is connected to, first, a zero-phase current transformer 10 and an earth relay 9 is mounted to the secondary side of the main switch gear 4 and a circuit switch 7 is closed. Then, a variable resistance 11 of a local light panel board 6 is adjusted and it is observed if a voltometer 14 indicates when the value of an ammeter 12 is shifted to an integer value of the earth relay 9. When said test is implemented in the No.3 light panel board 6 connected to the main switch gear 4, the earth relay 9 operates and the voltometer 14 indicates only a drop in the voltage of, for example, a second- grade earth resistance. This makes it clear that the main switch gear 4 is connected to the No.3 light panel board 6.

Description

【発明の詳細な説明】 この発明は、電灯、動力機器等、の電力供給源である電
灯分電盤、動力分電盤等の低圧回路の電源が、変電所内
の複数の主開閉器のうち何れかの主開閉器から供給され
ているか迅速確実に調査が可能な無停電方式の低圧回路
導通試験方法である。
DETAILED DESCRIPTION OF THE INVENTION This invention provides power sources for low-voltage circuits such as light distribution boards and power distribution boards, which are power supply sources for electric lights, power equipment, etc., from among multiple main switches in a substation. This is an uninterruptible low voltage circuit continuity test method that allows you to quickly and reliably check whether the supply is coming from any main switch.

低圧電路1分電盤等の工事、保守点検に於ては。For construction, maintenance and inspection of low-voltage power line 1 distribution boards, etc.

電灯分電盤及び動力分電盤の電源が変電所内のどの主開
閉器から供給されているか調査する必要がある。
It is necessary to investigate from which main switch in the substation the power for the lighting distribution board and power distribution board is supplied.

このような調査は、従来2人の作業者が1組となって行
っている。即ち、1人が変電所内の主開閉器を1つずつ
開放してゆき、その間に他の1人が。
Conventionally, such investigations are carried out by a team of two workers. In other words, one person opens the main switches in the substation one by one, while the other person opens them.

現場の分電盤で検電器、テスター等によシミ圧を検出し
、その結果を変電所にいる者に無線機等によって知らせ
ている。
Stain pressure is detected using voltage detectors, testers, etc. at the on-site distribution board, and the results are communicated to those at the substation via radios, etc.

しかしながら2通常鉄骨構造の変電所内と現場との間で
は、電波の伝搬状態が悪く、無線機による伝達は困難が
伴う問題があυ、能能率く確実な作業が行なえなかった
。まして前述のような調査を1人で行なおうとすると、
変電所と現場との間を何回も往復しなければならないか
ら、1人での調査は極めて非能率であった。又この調査
の間は。
However, the propagation of radio waves between the substation, which has a normal steel structure, and the site was poor, making it difficult to transmit radio waves, making it impossible to carry out work efficiently and reliably. Especially if you try to conduct the above-mentioned investigation by yourself.
It was extremely inefficient for a single person to conduct an investigation because the person had to go back and forth between the substation and the site several times. Also during this investigation.

どうしても停電が伴なうので、稼動中の機械、装置等に
よっては停電ができないものがアシ調査不能の場合もあ
った。
Since a power outage is inevitable, there are cases in which it is impossible to conduct a power outage for some machinery or equipment that is in operation, making it impossible to conduct a power outage survey.

そこで、この発明は停電に伴う問題を解消し、かつ−人
で作業が確実に行なえる無停電方式による低圧回路の導
通試験方法である。
SUMMARY OF THE INVENTION The present invention is an uninterruptible low voltage circuit continuity test method that eliminates the problems associated with power outages and allows for reliable manual work.

その原理は、変電所主開閉器の2次側配線に取付けた接
地リレーを現場分電盤に接続した可変抵抗を調節するこ
とにより接地リレーを動作さ一!、そのa接点を介して
、主開閉2次側に接続している電源側配線を抵抗を通し
て、第1.3種接地抵抗に接続する。これにより、変電
所内で電源側配線。
The principle is that the grounding relay attached to the secondary wiring of the substation main switch is operated by adjusting the variable resistance connected to the on-site distribution board! , through the a contact, the power supply side wiring connected to the main switching secondary side is connected to the class 1.3 grounding resistor through the resistor. This allows wiring on the power supply side within the substation.

抵抗、第1.3種接地抵抗、大地、第2種接地抵抗、中
性線、変圧器からなる閉回路を構成する。
It constitutes a closed circuit consisting of a resistor, a class 1.3 grounding resistor, earth, a class 2 grounding resistor, a neutral wire, and a transformer.

その時中性線に生ずる大地間の電圧を現場分電盤で検出
することによシ回路の導通が判断できる無停電方式の導
通試験方法である。
This is an uninterruptible continuity test method that allows you to determine the continuity of a circuit by detecting the voltage between the ground and the neutral wire that occurs on the field distribution board.

以下、これを図示実施例に基づいて説明する。第1図は
、変電所から現場分電盤までの配線の1態様を示す回路
図、第2図は、この回路の接続の1態様を示す接続図、
第3図はこの回路の検出手段の等価回路を示す。
This will be explained below based on illustrated embodiments. Fig. 1 is a circuit diagram showing one form of wiring from the substation to the on-site distribution board, and Fig. 2 is a connection diagram showing one form of connection of this circuit.
FIG. 3 shows an equivalent circuit of the detection means of this circuit.

第1図において、1および2は発電所(図示せず)から
の高圧交流電源を、変電所内で動力(三相為の変圧器、
E2は変圧器1,2の第2種接地。
In Fig. 1, 1 and 2 supply power (three-phase transformer,
E2 is the second type grounding for transformers 1 and 2.

E7.5は変電所内の第1.3種接地を示す。3および
4は、動力変圧器1.電灯用変圧器2の低圧側端子に接
続された配電盤内の複数の主開閉器、5および6は、そ
れぞれ配電盤内の複数の主開閉器3.4の各々の2次側
に、構内電線路を介して接続された複数の動力分電盤お
よび電灯分電盤である1、E3は動力分電盤5.電灯分
電盤6の第3種接地を示す。
E7.5 indicates type 1.3 grounding within the substation. 3 and 4 are power transformers 1. A plurality of main switches 5 and 6 in the power distribution board connected to the low voltage side terminal of the lighting transformer 2 are connected to the premises electric line on the secondary side of each of the plurality of main switches 3.4 in the power distribution board. A plurality of power distribution boards and lighting distribution boards 1 and E3 are connected via power distribution boards 5. The third type grounding of the lighting distribution board 6 is shown.

第2図には、複数の主開閉器4および複数の電灯分電盤
6のうち、それぞれ屋3のものが示されており2両者が
構内電線路を介して接続されている。
In FIG. 2, among the plurality of main switches 4 and the plurality of light distribution panels 6, those of the main switchboards 3 are shown, and the two are connected via an internal electric line.

変電所内の7は操作スイッチ、8は抵抗、10は零相変
流器、9は接地リレーであり、接地リレーのa接点(接
地リレーが動作した時閉になる接点)9′を介して抵抗
8が、第1.3種接地抵抗E1.3に接続される。(第
1.2.3種接地が共通でるhば、別に補助接地をとり
、これに接続する。)一方現場電灯盤6の電源側配線に
接続する11は操作スイッチ、12は可変抵抗、13は
電流計であり、中性線に接続する14は電圧計であり各
々電灯盤6の第2種接地抵抗に接続する。第3図におい
て電圧計14で、接地リレー9が動作した時に。
Inside the substation, 7 is an operation switch, 8 is a resistor, 10 is a zero-phase current transformer, and 9 is a grounding relay. 8 is connected to the class 1.3 grounding resistor E1.3. (If the 1st, 2nd and 3rd type grounding is common, take a separate auxiliary ground and connect it to this.) On the other hand, 11 connected to the power supply side wiring of the field light board 6 is an operation switch, 12 is a variable resistor, 13 14 is an ammeter, and 14 connected to the neutral line is a voltmeter, each connected to a second type grounding resistor of the light panel 6. In FIG. 3, when the grounding relay 9 is activated by the voltmeter 14.

中性線と大地間とに加わる電圧を検出する等価回路を示
す。
An equivalent circuit for detecting the voltage applied between the neutral wire and the ground is shown.

従って1以上のような構成によって、変電所内のA5主
開閉器4がどの電灯分電盤に接続されているか調査する
には、まず、第2図に示すように。
Therefore, in order to investigate which lighting distribution board the A5 main switch 4 in a substation is connected to using one or more configurations, first, as shown in FIG.

変電所内のA3主開閉器4の2次側に零相変流器10、
接地リレー9を取付け1回路スイッチ7を投入する。(
ただし、主開閉器4及び電灯分電盤6に漏電しゃ断が設
置されている場合は、接地リレーの動作電流を漏電しゃ
断器の不動作以下の整定とする。) そして1次で現場電灯分電盤6において、可変抵抗11
を調節して電流計12の値が、接地リレー9の整定値ま
で調節して電圧計14が指示するか観察する。
A zero-phase current transformer 10 is installed on the secondary side of the A3 main switch 4 in the substation.
Install the grounding relay 9 and turn on the 1-circuit switch 7. (
However, if an earth leakage breaker is installed in the main switch 4 and the lighting distribution board 6, the operating current of the grounding relay shall be set to a value below the non-operation of the earth leakage breaker. ) Then, in the primary field lighting distribution board 6, the variable resistor 11
Adjust the value of the ammeter 12 to the setting value of the grounding relay 9 and observe whether the voltmeter 14 indicates it.

A3の電灯盤以外の電灯分電盤で上記の試験をしても、
接地リレー9は不動作であるので、第6図に示す回路が
できないので、電圧計14の指示は0(v)である。
Even if you perform the above test on a light distribution board other than the A3 light board,
Since the grounding relay 9 is inoperative, the circuit shown in FIG. 6 cannot be formed, so the reading on the voltmeter 14 is 0 (v).

これに対して、屋5主開閉器4が接続されたA6電灯分
電盤6において上記試験を実施すると、接地リレー9が
動作して、第6図に示す回路が構成されるので、電圧計
14は、第2種接地抵抗の電圧降下分だけ指示をする。
On the other hand, when the above test is carried out on the A6 light distribution board 6 to which the main switch 4 of the house 5 is connected, the grounding relay 9 operates and the circuit shown in FIG. 6 is configured, so the voltmeter 14 gives an instruction for the voltage drop of the second type grounding resistor.

かくしてA3主開閉器4がA3電灯分電盤6と接続され
ていることが判明する。なお8以上は電灯主開閉器と電
灯分電盤間の電灯回路で説明したが。
Thus, it becomes clear that the A3 main switch 4 is connected to the A3 light distribution board 6. Note that 8 and above were explained using the light circuit between the light main switch and the light distribution board.

動力主開閉器と動力分電盤間の動力回路でも同様に調査
ができる。
The power circuit between the power main switch and the power distribution board can also be investigated in the same way.

なお、この試験方法は現場の電灯分電盤および動力分電
盤から、各負荷間の配線導通試験にも適用することがで
きる。
Note that this test method can also be applied to wiring continuity tests between each load from the on-site lighting distribution board and power distribution board.

以上説明したように、この試験方法を適用すれば。As explained above, if this test method is applied.

無停電方式なので稼動中の機械、装置等を停止すること
なく1人で確実に低圧回路の導通試験が実施できる活気
的な方法である。
Since it is an uninterruptible method, it is a lively method that allows one person to reliably conduct continuity tests on low-voltage circuits without stopping operating machinery or equipment.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、変電所から現場分電盤までの配線の1態様を
示す回路図 第2図は、この発明にかかる回路接続図第3図は、この
発明にかかる回路検出手段の1態様を示す等価回路図 1.2:変圧器 5,4:主開閉器 5,6:分電盤 
7:回路スイッチ 8:抵抗 9:接地リレー 10:
零相変流器 11:操作スイッチ12:可変抵抗 13
:電流計 14:電圧計X:変電所 Y:構内電線路 
2:現場。 特許出願人  大 塚 益 男
FIG. 1 is a circuit diagram showing one aspect of wiring from the substation to the on-site distribution board. FIG. 2 is a circuit connection diagram according to the present invention. FIG. 3 is a circuit diagram showing one aspect of the circuit detection means according to the present invention. Equivalent circuit diagram shown 1.2: Transformer 5, 4: Main switch 5, 6: Distribution board
7: Circuit switch 8: Resistor 9: Ground relay 10:
Zero-phase current transformer 11: Operation switch 12: Variable resistor 13
: Ammeter 14: Voltmeter X: Substation Y: Internal power line
2: On-site. Patent applicant Masuo Otsuka

Claims (1)

【特許請求の範囲】 主開閉器の2次側に接地を検出する接地リレーを有し1
分電盤で前記接地リレーを動作させる手段を持ち、前記
接地リレーのa接点を介して、前記主開閉2次側の電源
側配線を抵抗等を通して大地に接続する。 その時発生する中性線と大地間の電圧を分電盤にて検出
することにより1回路の導通が判断できる無停電を特徴
とする低圧回路の導通試験方法である。
[Claims] A grounding relay for detecting grounding is provided on the secondary side of the main switch.
A distribution board has means for operating the ground relay, and the power supply side wiring of the main switching secondary side is connected to the ground through a resistor or the like via the a contact of the ground relay. This is a continuity testing method for low-voltage circuits characterized by uninterrupted power, in which the continuity of a single circuit can be determined by detecting the voltage generated between the neutral wire and the ground at the distribution board.
JP57039063A 1982-03-12 1982-03-12 Conduction testing of power-interruption-free low voltage circuit Pending JPS58155373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57039063A JPS58155373A (en) 1982-03-12 1982-03-12 Conduction testing of power-interruption-free low voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57039063A JPS58155373A (en) 1982-03-12 1982-03-12 Conduction testing of power-interruption-free low voltage circuit

Publications (1)

Publication Number Publication Date
JPS58155373A true JPS58155373A (en) 1983-09-16

Family

ID=12542668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57039063A Pending JPS58155373A (en) 1982-03-12 1982-03-12 Conduction testing of power-interruption-free low voltage circuit

Country Status (1)

Country Link
JP (1) JPS58155373A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01176957A (en) * 1988-01-06 1989-07-13 Takenaka Komuten Co Ltd Inspection method for indoor wiring
JP2014147152A (en) * 2013-01-28 2014-08-14 Kandenko Co Ltd Test method for checking trunk line work voltage and phase and power supply device used therefor
CN105929282A (en) * 2016-06-02 2016-09-07 国网宁夏电力公司吴忠供电公司 Transformer tap position adjustment loop testing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01176957A (en) * 1988-01-06 1989-07-13 Takenaka Komuten Co Ltd Inspection method for indoor wiring
JP2014147152A (en) * 2013-01-28 2014-08-14 Kandenko Co Ltd Test method for checking trunk line work voltage and phase and power supply device used therefor
CN105929282A (en) * 2016-06-02 2016-09-07 国网宁夏电力公司吴忠供电公司 Transformer tap position adjustment loop testing device

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